block-negative-1b-dyn1.html (532B)
1 <!DOCTYPE html> 2 <html class="reftest-wait"> 3 <head> 4 <style type="text/css"> 5 #a { 6 height: 20px; 7 background-color: green; 8 margin-bottom: -20px; 9 } 10 #b { 11 display: none; 12 height: 20px; 13 background-color: blue; 14 margin-top: 20px; 15 } 16 </style> 17 <script type="text/javascript"> 18 function test() { 19 document.getElementById('b').style.display = 'block'; 20 document.documentElement.removeAttribute('class'); 21 } 22 document.addEventListener('MozReftestInvalidate', test); 23 </script> 24 </head> 25 <body> 26 <div id="a"></div> 27 <div id="b"></div> 28 </body> 29 </html>